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Christiansson P, Dawood N, Svidt K

Virtual buildings (VB) and tools to manage construction process operations

Abstract: Previous and current research and commercial activities within the virtual building area indicate that models are being developed to test and simulate different aspects of the building, but never being used to manage construction projects. This paper formulates visions and outlines solutions for how building process data can be used to represent and co-ordinate meta level digital virtual building models, generate construction site process models, capture as-built data from construction process, and handle external supplier information. A crucial part of the VB is the Project Management System (PMS), which is designed to manage the information input/output of the proposed virtual building and external processes. The PMS is outlined and specified in the paper according to functionality, part of user environment, and structure and underlying digital representations. The outlined framework will include IT-tools as temporal databases, semantic web technology and emerging web services. The PMS will support practical integration of partly redundant building product and process descriptions, improve capturing of as-built data to raise quality of the construction process and subsequent building use and maintenance, contribute to development of unified high (meta) level building process descriptions, and support project experience capturing and re-use.

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Full text: content.pdf (162,197 bytes) (available to registered users only)

Series: w78:2002 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.collaboration (0.020621) class.roadmaps (0.019436) class.processing (0.017539)
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Permission to reproduce these documents have been graciously provided by the Aarhus School of Architecture, Denmark. The assistnace of the editor, Prof. Kristian Agger, is gratefully aprecciated.


Christiansson P, Svidt K, Ove Skjarbek J, Aaholm R

User requirements modelling and design of collaborative virtual reality design systems

Abstract: Advanced Information Technology today gives us the opportunity to implement sophisticated distributed systems for collaborative design. Persons with different interests and competencies in the building process such as architects, installation engineers, structural engineers, clients, builders can all at least theoretically be brought together in a distributed design space where a virtual building will be designed, build, and functionally evaluated. A design space build in a virtual reality environment will enable us to realistically and efficiently simulate the form, function, and construction of the building object under consideration. In this connection we made the following definition of a Virtual Workspace. 'The Virtual Workspace, VW, is actually the new design room designed to fit new and existing design routines. VW may well be a mixed reality environment. The VW will host all design partners from project start with different access and visibility (for persons and groups) in space and time to the project, and will promote building up shared values in projects. The VW thus acts as a communication space with project information support in adapted appearances. VW gives access to general and specific IT-tools ' The paper presents experiences from the early phases of user requirements formulations and design of such collaborative design spaces. The findings are mainly based on collaborative university and consultant engineering company work done in the EU project 'Distributed Virtual Workspace for enhancing Communication within the Construction Industry - DIVERCITY' as well as experiences from student collaboration in distributed learning environments and earlier research within the area. It is extremely important to bridge the gap between the user requirements specifications and the actual interface design and implementation of the underlying operational models of the distributed virtual workspace system. This is certainly true as we actually design a new type of design artefact that will highly influence the traditional working methods and integration of design resources. The early conceptual design of the virtual workspace follows the so called Contextual Design methodology which gives input to the subsequent data modelling work and implementation in an object oriented web distributed environment. The method used is described and examples on resulting Work Models (work flow, sequence and artefact models) are presented and commented on.

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Full text: content.pdf (634,867 bytes) (available to registered users only)

Series: w78:2001 (browse)
Cluster: papers of the same cluster (result of machine made clusters)
Class: class.communication (0.065624) class.deployment (0.022154) class.environment (0.022092)
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Permission to reproduce these documents have been graciously provided by CSIR Building and Construction Technology. The assistance of the editors, Mr. Gustav Coetzee and Mr. Frances Boshoff, is gratefully appreciated.


Ekaterina Petrova, Mai Brink Rasmussen, Rasmus Lund Jensen and Kjeld Svidt

Integrating Virtual Reality and BIM for End-User Involvement in Design: A Case Study

Abstract: The outcome of projects within Architecture, Engineering, and Construction is highly dependent on the quality of the collaboration between the involved actors. The end-users occupy the buildings on a daily basis, and therefore their involvement in the design process is essential to the output. However, traditional practices place the responsibility of decision-making mostly in the architectsÕ hands. Virtual Reality technologies coupled with Building Information Modelling have the potential to improve the collaboration and data visualization in the building design.This paper presents the findings from a case study on the integration of Building Information Modelling and Virtual Reality for user-centred participatory interior furnishing of a new university building. Besides a significant reduction in the time for generation of alternative proposals, the end results show an increased attachment of the employees to their future workplace and a high level of acceptance towards the technology. Finally, the authors present suggestions for further work, which could improve future design processes utilizing the Virtual Reality technology.

Keywords: Virtual Reality, Building Information Modelling, End-User Involvement, Interior Design, Participatory Design

DOI: https://doi.org/10.24928/JC3-2017/0266

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Series: jc3:2017 (browse)
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Ekaterina Petrova, Peter Lind Johansen, Rasmus Lund Jensen, Steffen Maagaard and Kjeld Svidt

Automation of Geometry Input for Building Code Compliance Check

Abstract: Documentation of compliance with the energy performance regulations at the end of the detailed design phase is mandatory for building owners in Denmark. Therefore, besides multidisciplinary input, the building design process requires various iterative analyses, so that the optimal solutions can be identified amongst multiple alternatives.However, meeting performance criteria is often associated with manual data inputs and retroactive modifications of the design. Due to poor interoperability between the authoring tools and the compliance check program, the processes are redundant and inefficient. That has left the industry in constant pursuit of possibilities for integration of the tool within the Building Information Modelling environment so that the potential provided by the latter can be harvested and the processed can be optimized. This paper presents a solution for automated data extraction from building geometry created in Autodesk Revit and its translation to input for compliance check analysis.

Keywords: Building Information Modelling, Building Energy Design, Performance Assessment, Interoperability

DOI: https://doi.org/10.24928/JC3-2017/0265

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Kjeld Svidt, Per Christiansson

REQUIREMENTS ON 3D BUILDING INFORMATION MODELS AND ELECTRONIC COMMUNICATION – EXPERIENCES FROM AN ARCHITECTURAL COMPETITION

Abstract: In 2007 the public clients in Denmark started implementing new requirements on information handling in their construction projects. In the full implementation they will demand that all construction data on public construction projects are digitally managed and interchanged. Tendering shall be effected electronically over the Internet. Design will be based on 3D building models, which are gradually specified to reach different levels of detail. The parties involved in a specific construction project must share and interchange data and documents about the construction project on a common document management system accessed through the Internet. When a construction project is finished, the parties will hand over relevant operation and maintenance data electronically to the client. Detailed requirements have been developed on behalf of the public clients within four main areas: 3D models, Digital Tendering, Project Webs and Digital Handover. Within each of these areas, initial requirements have been tested in specific construction projects. This paper describes experiences from the test of the suggested requirements on 3D models. The requirements were used in an architectural competition on modernizing a cluster of university buildings. Four selected architects were invited to the competition. The proposals from the architects should be prepared as a 3D model in IFC format supplemented with a number of 3D visualizations chosen by the individual architects.

Keywords: 3D building models, BIM, electronic communication, requirements, architectural competition

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Series: w78:2008 (browse)
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Kristian Birch Sørensen, Per Christiansson, Kjeld Svidt, Kim Jacobsen, Thomas Simoni

TOWARDS LINKING VIRTUAL MODELS WITH PHYSICAL OBJECTS IN CONSTRUCTION USING RFID - REVIEW OF ONTOLOGIES

Abstract: Virtual models have in recent years proven their worth in practice relating to building design. Today virtual models of the complete project are created before the project is carried out in practice. The immediate advantages of this are great; it introduces fewer errors, gives a better production basis, improved clarity and enhanced communication methods compared to traditional 2D drafting methods. However, there is still much unutilized potential in the virtual models, especially in the construction and operation phases. It is expected that a digital link between the virtual models and the physical objects in the construction process can improve the information and knowledge handling from design to construction, operation and maintenance. The link can be created by use by use of Radio Frequency Identification (RFID) technology. This paper describes a review and assessment of existing ontologies relevant in relation to creating this link. The ontologies are categorised according to their applicability to specify technical services, resources, organisational relations, business processes and overall frameworks for ontology descriptions and their relations. It is concluded that, with few modifications the technical service and resource ontologies are applicable for industrial use and the meta, organisational and business process ontologies needs further development and industrial maturity to be applicable.

Keywords: Virtual Models, RFID, Ontologies, Project Progress Management, Ubiquitous Computing

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P. Christiansson, K.B. Sørensen, K. G. Steffensen & K. Svidt

User driven innovative building design

Abstract: During recent years there has been an ever-increasing focus on the possibilities to change the building process to raise quality on the final building products as well as on the activities of actors involved in the building process. One reason for this interest is the new opportunities evolving due to the broad introduction of advanced information and communication technology (ICT). VICMET is a general method for user involvement in every phase of the construction process and with a unique setup for each type of user. VICMET can use already created information in the building process and emphasis that the users are the key to next level of successful building projects. VICMET defines four spaces to support the activities in a innovative/creative design process; The Contextual Inquiry Space, the Conceptual Modeling and Game Space, the Functional Building Systems (FBS) Consolidation Space, and the Solution Space. In addition to these spaces there are supporting artifacts like Idea Bank and Good Story/Best Practice bank as well as Ontology containers and access to Communities of Practice and Interest. The project has so far validated the need for enhanced methods to involve end-users of buildings in a collaborative/participative creative and innovative building design process. The AEC professionals also appreciate development, enhancement and to some extent formalization of existing methods for user involvement in the building process.

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Series: w78:2009 (browse)
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Per Christiansson, Kjeld Svidt, Kristian Birch Sørensen

FUTURE INTEGRATED DESIGN ENVIRONMENTS

Abstract: We are facing a probable great change in the way we carry through design in future ICT supported environments. The main driving forces are the digitalization of information handling leading to a paramount paradigm shift when information storage and access media are separated, building process and product systems are formalized in digital models, user environments are provided with rich multimedia access to virtual models, virtual collaboration rooms established, and new efficient and effective ICT tools defined and implemented.There are though some barriers putting strains on the development. Among the most important are missing ontologies both on business and Web/Internet service levels as well as their interrelations, poor user involvement in needs and requirements formulations on new ICT tools and continuous user involvement in design and evaluation of new user environments, and lack of interoperability within building process/product models. The general competence level and preparedness for organizational and work change due to global paradigm needs to be increased.The paper presents a system development approach to future development of Integrated Building Design Systems (IBDS) with efforts to specify needs and wishes on future system and resources to support system development. Examples are picked from ongoing global efforts as well as finished and ongoing research at Building Informatics, Aalborg University.

Keywords: Integrated building design, future, ontologies, models, user driven, innovation

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